Disazodyestuffs able to be chromated



.iiverl from monouzoclyes LililliiilTE geeee se zo 2Y0 Brewing.

T0 aZZ 1072/0212 it may concern:

Be it known that l, Emu; BEBER, a citizen of the Swiss Republic, and resident of Basel, Switzerland,- have invented. new and useful Disaeodyestuffs Able to be Chromatecl, of which the following 21- full, clear, and exact s iecifioation.

I have found that new (lisezoi'lyestuffs oil the pyirazolone series which are able to be eliminated, mm be obtainecl by ilizizotisqiiig the monoazodyestufls derived. from a (li- 3201;0(13 and it further cliuzotizabie amino component, as'for instance, enilin, toluiilin, jz iuraxyliclizt cresizlin, naplitli'ylemim imply tlzylaminsulfonic acid of Cleve etc., and combining the resulting cliuzouzocempoujoi l with ,0 .ui'boxymrylpyrazolonecompoimils. The elisazoclyestufls thus obtained are listinguislie l by the prominent festness of their eln'onmtecl (lyeings to felling and pot ting, resulting from the simultaneous presence of 3 hydroxyl qroup and of :1 cui'lvoxyl gro'uy in the zu'yl. radical of the pyi'uzolonecomponent. The tints of the new clieazo- LlYBSt'llfiSVRYY accoi'ding to the monouzodye .stulls employed as parent nmteiiu-ls from 33% orange and brownish red. Particularly i 'eluelile are the (ilSzTZKMlYQstlllls ile- "ills o1) eomliiniiig :1 i' iuzoboly w tli ere. these lie-need; estulis furnish in 1 ings of a Clegiee of purity wuielm could not be attained llGIIGEOfOEQ with clu'onmtuble dyestuffs. Owliig to toe exteru position oi:

the eliromiitable groups in the (lyvstulil molecule, tliutis to say owing; to the feet tli the said OE: and (300.1% gi'oups able to forgo; chromium lakes are in an ili'filnatl fi nucleus different from the (lii'oniopliore em Tiers, there results the further iulvuntege filial the 'oln'omatecl Ll veings (lii'lei: not essenv tiztlly in color from the (lii'ec-t (lyeings, when ill no further chromatuble group has been introduced into-the (lyestufi, for lns'tunce, by eiuplovmg as parent material a monome- Specification of Letters Patent.

Patented Apia 2J2, wee.

Application fiIecl August 24, 1918. Serial 15:0.

(.lei'i'mtives us for instance the Q-oxy-Zl-edie qimntit v of sodium carbonate is successively I added that there results 21 clear solution with an even alkalinereaetion on litmus, suponi-- tying the liydrazoiies thus obtained, for instance, with cold soda lye and pi'eoipitatiiig the oxy-em'lioxyei'ylpymzolone with an acid. The 1-(5 sulfo-3-oerbo:-;y-2-oxy)- plienyl-l-methyl 5pyi'uzolone thus obtained dissolves 111 hot Wetei, cllllioultly 111 colcl WQ'L'G}? and. very easily in dilute sodium hyplien l-3-metliyl-f Wiuzoh dissolves (littill 11) dilute sostrztterl by the fol- Emma-gale J. 'lf'h (lllZOAilEfiYicliZlVG derived from parts m" ortlioununouzotoluene oorresp0ndiiig to the formula N=N NH \Wl/ .J 2

CH3 is lm'lflGCl a sol tion of 51! pert-s of l(5,-

-01::"bo;xiy-Q-o2;y) illlllljll- 3 methyl a made alkaline with soelium ear ilye tul i is precipitated from the l L om colored solution by an addition oi: common. salt in form of en oi'zinge pmoipiti The alyestulf consti tutes in. a to an orange powder dissolvii in 5 it to orange and in concen 'tmtee sulfuric mid to iuohsinwed solutions.

It dyes wool, in anacid bath, orange tints turning, on subsequent chromating, to a light-brown1sh-orange fast to felling and to potting.

E {sample 2.

The monoazodyestut'i prepared in the known manner rrom 17 parts of diazotized ortho-sulianilic acid and 15.1 parts of cresi din corresponding to the formula is further diazotized with 7 parts of sodiun'i nitrite and the resulting diazoazocompound is combined With a solution of 315 parts of 1 (5 sulfo 3 carboxy- 2"-oxy) phenyl-3- methyl-o-pyrazolone, made alkaline with so dium carbonate. The disazodyestufi' constitutes in a dry state a red powder dissolving in water to a red solution and in concentrated sulfuric acid to reddishsblue tion. It dyes wool, in an acid bath, rod tints becoming, on subsequent eliminating,

' intensively fast to tuning and to potting.

v tints turning, on subsequent chromating, to

Ewample 3. The monoazodyestuff derived from diazosulfos'alicylic acid (N:N:OH;COO1-I gso ninm 5 and cresidin correspondingto theformula is diazotized. in a known inanner and the re sulting diazoazocompcund is combined withthe equivalent quantity. of 1( l'-oXy-3carboxy) phonyl-3-methyl-5-pyrazo1one. The

-dyestufi separated by addition of oinmon salt constitutes, ina dry'state, a red powder dissolvingin Water to a red solution and in concentrated suliuric acid to a I'Bl'ltllfil'kblllifi solution. flit dyes wool, in an acid bath, red

. aclaret fast to fulling and to potting.

E (temple 1;.

30.7 parts of the monoazodyestufi derived f from paradiazosalicylic acid. and alphaline with sodium carbonate.

naphthylamin are d'iazotized with 7 parts of sodium nitrite and the resulting diazoazocompound is combined with a solution of 315 parts of 1(5'sulfo-3-carboxy-2-oxy)- phenyl-3-methyl-5-pyrazolone made alka- The dyestufi constitutes, in a dry state, a red-brown powconcentrated sulfuric acid with red toblue herein described disazodyestufi able to der dissolving in water to a brown-red S0111-- -tion. and in concentrated sulfuric acid to a greenish-blue solution. It dyes wool, inan acid bath, brownish-red tints turning, on

subsequent chroinating, to a brown fast to colorations and dye wool, in an acid bath,

clear red to orange and brownish red tints becoming, on subsequent chromating, fast to idling and to potting. b

2. As new products, the herein described, red disazodyestuffs ble to be chromated, derived from a diazotized monoazodyestuff resulting from the combination of a diazobody with cresidin and from an oxycarboxy-ary'l pyrazolone compound, whichfconstitutein a dry state red powders dissolving-.intwater to red solutions and in concentrated sulfuric acid to reddish blue solutions and dyeing wool in an acid bath, clear tints becoming, on. subsequent chroniating, fast to fulljng' and to potting.-

of manufacture, the be eliminated, and corresponding to the "formula 3. As a new article 1 which constitutes, in a dry state,' a red pow der soluble in water to a redsolution and in concentrated sulfuric acid toa'reddish-blue solution and dyes wool, in an acid bath, red

tints becoming, on subsequent chromating, fast to fulling and to potting.

In witness whereof I have hereunto signed myinaine this third day of August 1918, in the-presence of two subscribing witnesses. I

EMIL REBER. WV-itnesses: I I I H. DICK, Ammo BITTER. 

